Bought for a 6 month old granddaughter to wear to air shows. They seemed to work great and she even slept with them. My only complaint would be that they didn't seem to fit in the bottom of her ears as snugly as I would have liked. Also, they seemed to work quite well and she wasn't at all afraid of the very loud noises of the jet.
π§ KidCo S831 WhispEars - Baby Headphones for Noise Reduction (Orange)
3 Review
Hush Gear Baby Noise Cancelling Headphones: 28.6dB Sound Reduction, Adjustable Elastic Headband for Secure Comfortable Fit - Blue
3 Review
My Happy Tot Baby Noise Cancelling Headphones: Essential Kids Ear Protection Earmuffs
3 Review